Stop-motion for combing-machines.



' 1 1%. 737,268. I v PATENTBD AUG. 25, 1903.

' o. L. OWEN.

STOP MOTION FOR comma MACHINES.-

APPLICATION E'TLED SEPT-.18, 1902.

ivo. 737,2.

UNITED STATES i P atented August 25, 1909;.

PATENT OFFICE.

OSCAR L. OWEN, OF .WHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO THE WHITIN MACHINE WORKS, INCORPORATED, OF WHITINSVILLE, MAS- SAOHUSETTS.-

STOP-MOTION FOR COMBING -MACHINES.

SPECIFICATION forming part of Letters Patent No. 737,268, dated August 25, 1903.

Application filed September 19, 1902. Serial No. 124,016. (No model.)

To all whom it may concern:

Be it known that I, OSCAR L. OWEN, a citizen of the United States, residing at Whitinsville, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Stop-Motions for Combing-Machines, of which the following is a specification.

This invention has reference to an improvement in machines for combing cotton and similar textile fiber. In this class of comb ing-machines the prepared sliver is'delivered to the combingmeehanism by a pair of feedrolls, the lower one of which is positively driven, the upper roll being held against the driven roll by spring-pressed arms. The feed rolls are necessarily located in a confined space above the cushion-plate. In this class of machines the sliver is liable to wind on the lower or driven feed-roll and prevent the delivery of the sliver to. the combing mechanism, thereby diminishing the product of the machine. The coiling and packing of the sliver between the lower feed-roll and the parts adjacent thereto exert at times such pressure on the cushion-plate as to destroy the same and make expensive repairs necessary.

The object of this invention is to arrest the rotation of the lower feed-roll as soon aspossible after the delivery of the sliver is interrupted by the winding of the sliver on the feed-roll; and to this end the invention consists in the peculiar and novel construction and combination of mechanism whereby the driven feed-roll may be automatically disconnected from the driving-gear, as will be more fully set forth hereinafter.

Figure 1 is a view, partly in section, taken transversely through one of the sections of x a combing-machine, showing the feed-rolls and the safety attachment connected with the same. Fig. 2 is a longitudinal skeleton View showing the ,f.eed-rolls, the gears for driving the lower feed-roll, and the safety attachment connected with the driven feed-roll. Fig. 3

is an end View, partly in section, showing the positions of the safety attachment in broken lines with the driven feedroll partly raised and in-solid lines when the driven feed-roll is raised sufficient to disengage the driving bearings for a driveii feed-roll, (these bearings usually'supporting only the lower half of the driven feed-roll shaft,) and a the bar .on which the cushion-plate a? issupported. One of the journal-bearings a has the extension a provided with the notches a ,and of, and on the driven feed-roll b, above the extension a is placed the collar a, having the pawl a projecting from. one end, i formed to engage with the notches of and at, To the collaro is connected the counterweight a". The collar a is free to'turn on the drivenzfeed-roll shaft; but in the normal condition thepawl of the collar bears on the extension a and supports" the counterweight a in the raised position. On the shaft of the driven feed-roll 1), near its end, is secured the gear 12, which engages with the driven pinion o by which in the normal condition rotary motion is imparted to the feed-roll. I

The top roll cis journaled mom arms 0, pivotally secured to the frames a a. The arms 0' c are provided with the studs 0 0 on whichthe coiled tension-springs'c are supported, the opposite endsof, these springs being adj ustably secured to the brackets 0 By this construction the top roll is free to ride on the driven feedroll-resistedby the strains exerted by the coiledsprings 6 0 In the normal operation of the machine the sliver cl is usually delivered'in the form of a lap of a width corresponding with thelength of the feed-rolls. It. is usually carried from the lap-roll d by means of a guide between the feed-rolls and is delivered in the normal condition to the combing mechanism. WVhen now the sliver laps around the feed-roll, the sliver will be crowded between the bar a and the cushion-plate so quickly and so tight that v frequently these parts, and particularly the of the coiled springs so that when the sliver laps around the feed-roll and causes the driven feed-roll to rise in its journal-bearings the counterweight a causes the pawl a to engage first with the notch a and then with the notcha thereby lifting the shaft of the driven feed-roll and disengaging the gear b from the pinion b to stop the machine before the continual winding of the lap around the feed-roll can break or injure the parts adjoining the same.

Having thus described my invention, I claim as new and desire to secure by Letters Patentv 1. In a machine for combing cotton or similar textile fiber, the combination with the driven feed-roll and the mechanism for driving the feed-roll, of means for disconnecting the driven feed-roll from the driving mechanism, as described.

2. In a machine for combing cotton or similar textile fibers, the combination with the driven feed-roll and the journal-support for the same, of a weighted collar and a pawl on the collar adapted to support the feed-roll out of engagement with the driving Inecl1anism, as described.

3. A stop -1notion for combil'ig-machines, consisting of an overweighted pawl connected with the driven feed-roll, whereby the feedroll may be disconnected from the driving mechanism, as described.

4. In a combing-machine of the nature described, the combination with the driven feed-roll, the parts adjacent to the driven feed-roll, and the driving mechanism, of a stop mechanism cooperating with the shaft of the feed-roll to disconnect the driving mechanism from the feed-roll, as described.

5. The combination in a combing-machine of the nature described with the feed-roll b, the journal-bearings a for the same, the pinion b and the gear I), of the extension a, having notches a and a 011 the same, the collar a supported on the shaft of the feedroll, the pawl a on the collar and the counterweight a connected with the collar, whereby on the lapping of the sliver around the feedroll the gear I) may be automatically disconnected from the driving pinion W, as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OSCAR L. OWEN. \Vitnesses:

B. S. IVEBsTER, J. A. MILLER, Jr. 

